Shovel-standard.



No. 797,756. PATENTED AUG.22,1905.

' H. G. SAWYER.

SHOVEL STANDARD. APPLICATION FILED NOV.17, 1904:.

2 SHEETSBHBET 1.

PATENTED AUG. 22, 1905.

H. G. SAWYBR.

SHOVEL STANDARD.

APPLICATION FILED NOV. 17, 1904.

2 SHEETSSHEET 2.

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UNITED STATES PATENT OFFICE.

SHOVEL-"STANDARD.

' sheet-metal standard so constructed that it may be formed from asingle piece of sheet metal Without heating, while at the same timeitprovides the necessary strength, durability, and adjustability and isso formed as to be readily and effectively attached to the drawbar.

Another object of my invention is to provide a light, inexpensive, anddurable standard.

These and such other objects as may hereinafter appear are attained bythe devices shown in the accompanying drawings, in whiel1 Figure 1represents a side elevation of my improved standard. Fig. 2 is alongitudinal sectional view on the line 2 2 of Fig. 1. Fig. 3 is across-sectional view on the line 3 3 of Fig. 1. Fig. etisa rearelevation of a portion of Fig. 1. Fig. 5 is a side elevation showing ashovel-clip attached to the standard. Fig. 6 is a rear elevation of Fig.5, showing the shovel-clip in another position; and Fig. 7 is a sideelevation of a portion of Fig. 6.

Like letters of reference indicate the same parts in the several figuresof the drawings.

Referring by letter to the accompanying drawings, A represents ashovel-standard comprising wings B and a neck C. The wings B are turnedoutwardly at their edges, forming flanges D, and have ribs E and bossesG formed in their faces. The flanges terminate in the rear in a doublelip F. The wings are provided with bolt-holes G, located Within thebosses G, and adjustment-holes H H H in the upper portion of the wing.

In Figs. 5, 6, and 7 I have shown the standard attached to a cultivatordraw-bar by means of the bolt and nut G" and the adjustmentbolt h andnut 71..

Attached to the neck C of the standard, by means of a bolt K and nut K,is a sh0vel-clip J,'Which in the device illustrated is formedSpecification of Letters Patent.

Application filed November 17,1904:- Serial No. 233,208-

Patented Aug. 22, 1905.

from a single piece of metal and to which is attached the shovel L.

Referring now to Figs. 1, 2, 3, and a, my shovel standard or shank ismade, preferably, from a single piece of steel. The blank is first cutto shape, the bolt-holes G and adj ustment-holes H, H, and H" are nextpunched out, and the ribs E and bosses G pressed into shape. The blankis then folded until the outer edges of the neck portion meet and thewings are parallel.

The lips F may be provided with holes ff and bolted or riveted together,if desired.

The standard is pivotally attached to the draw-bar I by means of thebolt G and nut G" or wood break-pin, and the desired adj ustment iseffected by means of the adjustmentholes H H H and the bolt 7t and nut71,.

The use of either the flanges or ribs and bosses imparts great strengthto the standard, especially at those points most subjected to strain as,for instance, the circular bosses Gr about the bolt-holes in a greatmeasure prevent the breaking of the metal at that point-and when thecultivator to which the standard is attached is in use the greateststrain will come between the point where the clip is attached to thestandard and the point where the standard is pivoted on the drawbar-that is, between the points K and G This great strain is met by meansof the change in direction between CandBby means of the ribs E extendinginto the neck and by means of the lips F, all in conjunction with thebosses G.

The use of pressed steel with bosses, ribs, and flanges permits the useof metal of such a degree of thinness that a standard weighing not toexceed ten to twelve ounces will ondure a greater strain than theordinary standards now in use which weigh two pounds and upward.

As the position of the shovels is generally shifted by the foot of theoperator, the fact that standards Weighing five pounds per set are moreeffective than those of the old type now in use weighing sixteen poundsper set is persuasive as to the value of the former. So, also, the costis materially reduced, as my improved standards can be manufactured forless than one-third the cost of those now in use.

The shovel-clip J carrying the shovel L, is bolted to the neck O of thestandard and may be shifted to any desired position by loosening thebolt K and turning the clip on the neck until the desired position isreached,

then tightening the bolt. If it is desired to attach thecultivator-blade at right angles to the standard, the clip may be movedupwardly on the neck until the lips F of the standard enter the throat Jof the clip, thus locking the clip and bolt against any lateralmovement.

When the cultivator is used where the shovels are liable toencounterobstructions, I prefer to use wood break-pins in place of thebolt G WVhen bolts are used and the shovels meet an obstruction there isapt to be a severe straining or breaking of some of the parts, whilewhen wood pins are used and the strain is great enough to injure thecultivator the pins are sheared ofi, thus allowing the shovel to adaptitself and pass over the obstruction. The bosses surrounding the bolt orbreak-pin holes peculiarly strengthen or thicken the point of contactwith the bolt or pin, preventing them from being readily cut off by theedge of the metal.

hile I have shown a standard having longitudinal ribs in the wings andcircular bosses about the bolt-holes G, together with flanges on theedges, it is evident that the use of either of these elements used alonewould be superior to the standard now in use. So, also, I do not limitmyself to any particular style of ribs or any particular location of thesame, as I am aware that there are various modifications that can bemade without departing from the spirit of my invention.

I claim- 1. A shovel-standard formed of a single piece of sheet metal tocomprise a tubular neck, and a pair of wings extending upwardlytherefrom, a portion of the metal of said standard being embossedoutwardly, said embossed portion being provided with bolt-holes and themetal being embossed inwardly around said bolt-holes to provide arelatively broad bearing.

2. A shovel-standard formed of a single piece of sheet metal to comprisea tubular neck and a pair of wings extendingupwardly from said neck, apart of the opposite sides of said standard being embossedlongitudinally, the embossed portion projecting outwardly and beingprovided with bolt-holes, the metal being embossed inwardly around saidbolt-holes to provide a relatively broad bearing.

3. A shovel-standard formed of sheet metal to comprise a tubular neckand a pair of wings extending upwardly from said neck, each of saidwings being provided with an outwardlyturned marginal flange extendingentirely around the free edges of said wings, a portion of said wingsbeing also embossed longitudinally and outwardly, the embossed portionof each wing being provided with a bolt-hole, and the metal surroundingsaid bolt-hole being embossed inwardly to provide a relatively broadbearing.

4:. As a new article of manufacture, a shovelstandard comprising flangedwings adapted to engage the draw-bar and a tubular neck adapted toreceive a shovel-clip, said wings having longitudinal ribs and circularbosses surrounding the bolt-holes.

5. As anew article of manufacture, a shovelstandard comprisingoutwardly-flanged Wings adapted to engage the draw-bar and a neckadapted to receive a shovel-clip, said wings having longitudinal offsetsand circular bosses surrounding the bolt-holes, the flanges on the wingsterminating in lips.

6. As anew article of manufacture, a one piece shovel-standard,comprising wings having outwardly-projecting flanges terminating inlips, and a neck, said wings having circular bosses and longitudinalribs extending into the neck.

7. A cultivator-shovel standard provided with lips adapted to enter anopening through the shovel-clip, so as to prevent rotation of theshovel-clip upon the standard, substantially as described.

HENRY Gr. SAVV'YER.

WVitnesses:

F. H. DRURY, M. E. SHinLns.

